package com.gsj.boot.dao;

/**
 * @program: mybatisDriud
 * @description:
 * @author: 郭书江
 * @create: 2022-06-28 15:04
 **/
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
@Mapper
public interface TestMapper {

    @Select("select userName from users")
    String test();
}